From 1a861c742c3070673f6273fcaed51d29f22b7e3f Mon Sep 17 00:00:00 2001
From: Vincent Lejeune <vljn@ovi.com>
Date: Wed, 18 Feb 2015 23:42:42 +0100
Subject: [PATCH] Add a GR for GI in central_settings

---
 src/graphics/central_settings.cpp      | 8 +++++++-
 src/graphics/central_settings.hpp      | 1 +
 src/graphics/graphics_restrictions.cpp | 1 +
 src/graphics/graphics_restrictions.hpp | 1 +
 4 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/graphics/central_settings.cpp b/src/graphics/central_settings.cpp
index 0cecaaae5..864cd710d 100644
--- a/src/graphics/central_settings.cpp
+++ b/src/graphics/central_settings.cpp
@@ -27,6 +27,7 @@ void CentralVideoSettings::init()
     hasTextureCompression = false;
     hasUBO = false;
     hasGS = false;
+    m_GI_has_artifact = false;
 
     m_need_rh_workaround = false;
     m_need_srgb_workaround = false;
@@ -140,6 +141,11 @@ void CentralVideoSettings::init()
             UserConfigParams::m_high_definition_textures = 0x00;
         }
 
+        if (!GraphicsRestrictions::isDisabled(GraphicsRestrictions::GR_GI))
+        {
+            m_GI_has_artifact = true;
+        }
+
         // Specific disablement
         if (strstr((const char *)glGetString(GL_VENDOR), "NVIDIA") != NULL)
         {
@@ -263,7 +269,7 @@ bool CentralVideoSettings::supportsShadows() const
 
 bool CentralVideoSettings::supportsGlobalIllumination() const
 {
-    return isARBGeometryShader4Usable() && isARBUniformBufferObjectUsable();
+    return isARBGeometryShader4Usable() && isARBUniformBufferObjectUsable() && !m_GI_has_artifact;
 }
 
 bool CentralVideoSettings::supportsIndirectInstancingRendering() const
diff --git a/src/graphics/central_settings.hpp b/src/graphics/central_settings.hpp
index 980c0a666..b7b774541 100644
--- a/src/graphics/central_settings.hpp
+++ b/src/graphics/central_settings.hpp
@@ -26,6 +26,7 @@ private:
 
     bool m_need_rh_workaround;
     bool m_need_srgb_workaround;
+    bool m_GI_has_artifact;
 public:
     void init();
     bool isGLSL() const;
diff --git a/src/graphics/graphics_restrictions.cpp b/src/graphics/graphics_restrictions.cpp
index 24fb7dae2..e088d935b 100644
--- a/src/graphics/graphics_restrictions.cpp
+++ b/src/graphics/graphics_restrictions.cpp
@@ -59,6 +59,7 @@ namespace GraphicsRestrictions
             "HighDefinitionTextures",
             "AdvancedPipeline",
             "FramebufferSRGBWorking",
+            "GI",
         };
     }   // namespace Private
     using namespace Private;
diff --git a/src/graphics/graphics_restrictions.hpp b/src/graphics/graphics_restrictions.hpp
index 2636e1c64..908a0e03f 100644
--- a/src/graphics/graphics_restrictions.hpp
+++ b/src/graphics/graphics_restrictions.hpp
@@ -53,6 +53,7 @@ namespace GraphicsRestrictions
         GR_HIGHDEFINITION_TEXTURES,
         GR_ADVANCED_PIPELINE,
         GR_FRAMEBUFFER_SRGB_WORKING,
+        GR_GI,
         GR_COUNT  /** MUST be last entry. */
     } ;